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Fencer Vulns
high 7.1

CVE-2023-27349 json

BlueZ Audio Profile AVRCP Improper Validation of Array Index Remote Code Execution Vulnerability

published 2024-05-03 2 y ago modified 2026-06-17 4 mo ago also EUVD-2023-31125

cvss
7.1
version 3.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
1.4%
EPSS 1.4% chance of exploitation in 30 days, percentile 73%
public exploits
0
none known

Summary

BlueZ Audio Profile AVRCP Improper Validation of Array Index Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code via Bluetooth on affected installations of BlueZ. User interaction is required to exploit this vulnerability in that the target must connect to a malicious device.

The specific flaw exists within the handling of the AVRCP protocol. The issue results from the lack of proper validation of user-supplied data, which can result in a write past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-19908.

Patch / fix

  • bluez Debian 12 5.66-1+deb12u2
  • bluez Debian 14, Debian 13 5.68-1

debian advisories DEBIAN-CVE-2023-27349

  • bluez Ubuntu 20.04 LTS 5.53-0ubuntu3.8
  • bluez Ubuntu 22.04 LTS 5.64-0ubuntu1.3
  • bluez Ubuntu Pro 16.04 LTS 5.37-0ubuntu5.3+esm4
  • bluez Ubuntu Pro 18.04 LTS 5.48-0ubuntu3.9+esm2

ubuntu advisories UBUNTU-CVE-2023-27349

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • bluez RHEL 8 5.63-5.el8_10
  • bluez-cups RHEL 8 5.63-5.el8_10
  • bluez-libs RHEL 8 5.63-5.el8_10
  • bluez-obexd RHEL 8 5.63-5.el8_10
  • bluez-hid2hci RHEL 8 5.63-5.el8_10
  • bluez RHEL 9 5.72-2.el9
  • bluez-cups RHEL 9 5.72-2.el9
  • bluez-libs RHEL 9 5.72-2.el9

red hat advisories RHSA-2025:4043RHSA-2024:9413

  • bluez SLES for SAP 15 SP3, SLES 15 SP3-LTSS, SLE Real Time 15 SP3 +5 more 5.55-150300.3.22.1
  • bluez SLE Workstation Extension 15 SP4, SLE Module for Desktop Applications 15 SP4, SLE Module for Basesystem 15 SP4 +4 more 5.62-150400.4.13.1
  • bluez SLES for SAP 12 SP5, SLES for SAP 12 SP4, SLES 12 SP5 +7 more 5.13-5.39.1
  • bluez SLE Workstation Extension 15 SP5, SLE Module for Desktop Applications 15 SP5, SLE Module for Basesystem 15 SP5 +1 more 5.65-150500.3.3.1
  • bluez SLES for SAP 15 SP2, SLES 15 SP2-LTSS, SLE High Performance Computing 15 SP2-LTSS +1 more 5.48-150200.13.25.1
  • bluez SLES for SAP 15 SP1, SLES 15 SP1-LTSS, SLE High Performance Computing 15 SP1-LTSS 5.48-150000.5.49.1

suse advisories SUSE-SU-2023:2613-1SUSE-SU-2023:2605-1SUSE-SU-2023:2562-1SUSE-SU-2023:2546-1SUSE-SU-2023:2545-1SUSE-SU-2023:2533-1

  • bluez openSUSE Tumbleweed 5.68-2.1

opensuse advisories openSUSE-SU-2024:13128-1

  • bluez-cups AlmaLinux 8 5.63-5.el8_10.alma.1
  • bluez AlmaLinux 9 5.72-2.el9
  • bluez-cups AlmaLinux 9 5.72-2.el9
  • bluez-libs AlmaLinux 9 5.72-2.el9
  • bluez-obexd AlmaLinux 9 5.72-2.el9

almalinux advisories ALSA-2025:4043ALSA-2024:9413

  • bluez Rocky Linux 8 5.63-5.el8_10
  • bluez Rocky Linux 9 5.72-2.el9

rocky linux advisories RLSA-2025:4043RLSA-2024:9413

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2023-27349 updated cvss 7.1

BlueZ: Audio Profile AVRCP Improper Validation of Array Index Remote Code Execution Vulnerability

  • Red Hat Enterprise Linux 6 bluez, bluez-alsa, bluez-cups, bluez-libs, bluez-compat, bluez-gstreamer Red Hat Enterprise Linux 7 bluez, bluez-cups, bluez-libs, bluez-hid2hci
    affected: no fix planned “Out of support scope”
  • Red Hat CodeReady Linux Builder (v. 9) bluez-debuginfo 5.72-2.el9, bluez-libs-devel 5.72-2.el9, bluez-debugsource 5.72-2.el9, bluez-cups-debuginfo 5.72-2.el9, bluez-libs-debuginfo 5.72-2.el9, bluez-mesh-debuginfo 5.72-2.el9, +3 more
    fixed: vendor fix RHSA-2024:9413
  • Red Hat Enterprise Linux AppStream (v. 8) bluez-cups 5.63-5.el8_10
    fixed: vendor fix RHSA-2025:4043
  • Red Hat Enterprise Linux AppStream (v. 9) bluez-cups 5.72-2.el9, bluez-obexd 5.72-2.el9
    fixed: vendor fix RHSA-2024:9413
  • Red Hat Enterprise Linux BaseOS (v. 8) bluez 5.63-5.el8_10, bluez-libs 5.63-5.el8_10, bluez-obexd 5.63-5.el8_10, bluez-hid2hci 5.63-5.el8_10
    fixed: vendor fix RHSA-2025:4043
  • Red Hat Enterprise Linux BaseOS (v. 9) bluez 5.72-2.el9, bluez-libs 5.72-2.el9
    fixed: vendor fix RHSA-2024:9413
  • Red Hat Enterprise Linux CRB (v. 8) bluez-debuginfo 5.63-5.el8_10, bluez-libs-devel 5.63-5.el8_10, bluez-debugsource 5.63-5.el8_10, bluez-cups-debuginfo 5.63-5.el8_10, bluez-libs-debuginfo 5.63-5.el8_10, bluez-obexd-debuginfo 5.63-5.el8_10, +1 more
    fixed: vendor fix RHSA-2025:4043
  • Red Hat Enterprise Linux 10 bluez
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
13 mo ago

Exploit prediction

1.43% chance of exploitation in the next 30 days, higher than 73% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.0 7.1 CVSS:3.0/AV:A/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD 3.1 8.0 CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected products

  • BlueZ BlueZ

Classification

Weakness
  • CWE-129 Improper Validation of Array Index

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.